Zobrazeno 1 - 10
of 45
pro vyhledávání: '"John V. Hryniewicz"'
Autor:
R. Davidson, Ronald C. Menendez, Wei Chen, Paul Toliver, Peter J. Delfyett, T. Banwell, Shahab Etemad, John V. Hryniewicz, F.G. Johnson, Jeff F. Young, Wenlu Chen, Janet Lehr Jackel, Douglas M. Gill, O. King, Brent E. Little, Anjali Agarwal, Sai T. Chu, K. Donovan
Publikováno v:
Journal of Lightwave Technology. 24:77-87
A novel ring-resonator-based integrated photonic chip with ultrafine frequency resolution, providing programmable, stable, and accurate optical-phase control is demonstrated. The ability to manipulate the optical phase of the individual frequency com
Autor:
P.P. Absil, T.A. Ibrahim, F. G. Johnson, John V. Hryniewicz, P.-T. Ho, Vien Van, L.C. Calhoun, R. Grover
Publikováno v:
Journal of Lightwave Technology. 20:900-905
We demonstrate an optical channel dropping filter (OCDF) using three parallel-cascaded vertically coupled microrings with improved rolloff, bandpass flattening, and wide free spectral range (FSR) compared to a single-ring OCDF using single-mode tight
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 15:616-621
A chemically assisted ion beam etching system has been developed which performs high quality, highly anisotropic etching of AlGaAs/GaAs at relatively low ion energies (200 eV). The use of three grid ion optics in a Kaufman ion source allows etching a
Autor:
O. King, F. Seiferth, D. Gill, Vien Van, Brent E. Little, M. Trakalo, P.P. Absil, Sai T. Chu, F.G. Johnson, John V. Hryniewicz
Publikováno v:
IEEE Photonics Technology Letters. 16:2263-2265
High-order microring resonators having from 1 to 11 coupled cavities are demonstrated. These filters exhibit low loss, flat tops, and out-of-band rejection ratios that can exceed 80 dB. They achieve performance that is suitable for commercial applica
Publikováno v:
IEEE Photonics Technology Letters. 13:49-51
A new technique is presented to make vertically coupled semiconductor microring resonators that eases the fabrication process with devices more robust to ring-to-waveguide misalignments. Single-mode microring optical channel dropping filters are demo
Publikováno v:
IEEE Photonics Technology Letters. 12:398-400
Microresonator filters reported so far have been all-pole-type filters. We report two experimental realizations of zero-type (notch) filters using GaAs-AlGaAs microring resonators. The first is a ring coupled to one side of a Mach-Zehnder interferome
Publikováno v:
IEEE Photonics Technology Letters. 12:320-322
Second- and third-order filter response is experimentally shown in filters constructed using mutually coupled microring resonators. The higher order filters have passbands with sharper rolloff and flatter tops, and greater out-of-band rejection than
Autor:
Sai T. Chu, John Monk, F.G. Johnson, Wenlu Chen, John V. Hryniewicz, K. Donovan, Brent E. Little, R. Davidson, O. King, Fred A. Kish, D. Gill, Wei Chen
Publikováno v:
2009 14th OptoElectronics and Communications Conference.
We highlight recent advances in advanced photonic integration of reliable densely integrated photonic integrated circuits (PIC) and high-index-contrast photonic lightwave circuits (PLC). The applications and benefits of these devices will be presente
Autor:
Pierre Mertz, R. Davidson, D. Gill, Wei Chen, Wenlu Chen, Sai T. Chu, K. Donovan, O. King, F.G. Johnson, Brent E. Little, John V. Hryniewicz
Publikováno v:
2008 34th European Conference on Optical Communication.
Three-stage Vernier, 3rd order lattice ring filters are implemented to realize a full C-band spectrometer. A polarization controller is also integrated for ldquosplit and fliprdquo operation.
Autor:
Sai T. Chu, R. Davidson, Wei Chen, S.G. Grubb, D. Gill, Wenlu Chen, John V. Hryniewicz, O. King, Brent E. Little, F.G. Johnson, K. Donovan
Publikováno v:
2008 34th European Conference on Optical Communication.
Tunable bandwidth, tunable line-shape filters are realized by incorporating Mach-Zehnder interferometers as directional coupler elements within higher order microring resonators. A flat-top bandwidth tuning range of 2.7 GHz to 21 GHz is demonstrated.